Field and laboratory aging of RTV silicone insulator coatings

Field and laboratory aging of RTV silicone insulator coatings

The silicone-based coating applied to 345 kV post insulators in a substation on the shore of Long Island Sound has depolymerized over a period of about 7 years although no in-service failures have occurred. However, the increasing rate of depolymerization suggests that the coatings will have to be r...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:IEEE transactions on power delivery 2000-10, Vol.15 (4), p.1298-1303
Hauptverfasser: Homma, H., Mirley, C.L., Ronzello, J., Boggs, S.A.
Format: Artikel
Sprache:eng
Schlagworte:
Aging
Coatings
Creep
Depolymerization
Insulation
Insulators
Islands
Laboratories
Material properties
Porcelain
Shores
Silicones
Sound
Substations
Surface cracks
Voltage
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The silicone-based coating applied to 345 kV post insulators in a substation on the shore of Long Island Sound has depolymerized over a period of about 7 years although no in-service failures have occurred. However, the increasing rate of depolymerization suggests that the coatings will have to be renewed in the near future. This paper reports comparisons of aging and material properties for a number of RTV silicone insulator coatings and measurements related to application of a new coating over an existing, field-aged coating.
ISSN:0885-8977
1937-4208
DOI:10.1109/61.891518